Home / 20,881.13-31,313.97-14,637.96

Finding the Fourth Proportional to 20,881.13, 31,313.97 and 14,637.96

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Solution

The fourth proportional to 20,881.13, 31,313.97 and 14,637.96 is: 21,951.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881.13 : 31,313.97 = 14,637.96 : x
  2. Step 2: Convert to fraction form
    20,881.13/31,313.97 = 14,637.96/x
  3. Step 3: Cross multiply
    20,881.13x = 31,313.97 × 14,637.96
  4. Step 4: Simplify right side
    20,881.13x = 458,372,640.30
  5. Step 5: Solve for x
    x = 458,372,640.30/20,881.13
  6. Step 6: Final answer
    x = 21,951.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.